diff --git a/src/log.py b/src/log.py
index 88b6fde3222996d5473eb968839e01cf9a11105b..55117cf438a4eccb21f7e2d52f23bb10676fbb29 100644
--- a/src/log.py
+++ b/src/log.py
@@ -617,7 +617,7 @@ class LogManager(object):
             else:
                 return 0
 
-        data_block = dict((name, get_last_value(self.get_table(qname)))
+        data_block = dict((qname, get_last_value(self.get_table(qname)))
                 for qname in self.quantity_data.iterkeys())
 
         if self.mpi_comm is not None: